Add ImportPipelineButton to NoPipelineServer component

[Gkrumbach07]

closes: https://issues.redhat.com/browse/RHOAIENG-4846

Description

The NoPipelineServer component now handles both no pipeline server and no pipelines since the UI refresh. However this component would only ever open the no pipeline server modal. This PR does the lightest change possible and just adds a condition to render the correct modal. Ideally these should be separated into their own components, but to maintian the most stability i kept it like this.

How Has This Been Tested?

1. open project pipelines tab from project details page (with no pipeline server installed)
2. empty state button should open configure pipeline server modal
3. configure the server
4. now the empty state should be no pipelines AND the button should open to the import pipeline modal

Test Impact

no tests impacted

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
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After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[jpuzz0]

/lgtm /approve

[Gkrumbach07]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Gkrumbach07, jpuzz0

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